Alert archive / Maryland / Flash Flood Warnings in 2023
Flash Flood Warning 53, NWS Wakefield, VA
NWS Wakefield, VA issued this flash flood warning at Aug 7, 2023, 9:58 PM EDT for Wicomico County, Maryland. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 7, 2023, 9:58 PM EDT (01:58 UTC)
- Expired
- Aug 8, 2023, 1:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Wicomico County, MD
The radar
The Dover AFB radar (KDOX), 53 km from the middle of the area, began a volume at 02:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.0 hours before the alert went out and 53 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1636 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 6.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wakefield, VA wrote its last area forecast discussion before this flash flood warning went out at Aug 7, 8:29 PM EDT, 1 hour 29 minutes earlier.
Area forecast discussion, Aug 7, 8:29 PM EDT, 1 hour 29 minutes before
AREA FORECAST DISCUSSION National Weather Service Wakefield VA 829 PM EDT Mon Aug 7 2023 .SYNOPSIS... A cold front will approach the area from the west this evening, resulting in increased chances for showers and thunderstorms, some of which may be severe. Seasonable weather expected for the remainder of the week. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... As of 825 PM EDT Monday... Added Severe T-Storm Watch 611 for NE NC counties until 11 pm, as southern shortwave crosses the Carolinas. Area continues to be split by shortwaves, which has served to enhance convective inhibition over central and southern portions of the area. This was accounted for in lower PoPs over southern half of the area, but it seems to be verifying to a stronger degree than previously modeled. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/... As of 245 PM EDT Monday... Cooler, drier air pushes into the region post-frontal Tuesday on breezy NW winds. Winds will gust to 20-30 mph late Tue morning into the afternoon, highest along the coast. Dewpoints look to drop into the upper 50s to ~60 across the piedmont into RIC metro area. Closer to the coast, dewpoints will likely stay in the mid-60s. Highs will be in the 80s inland and the low 90s across the SE coast. Remaining dry and seasonable across the area on Wednesday. After lows in the 60s on Tuesday night, look for highs in the upper 80s to near 90 on Wednesday. Dewpoints will continue to be relatively pleasant in the low-mid 60s. Skies will still be mostly sunny. Lows will again be in the 60s Wednesday night. && .LONG TERM /THURSDAY THROUGH MONDAY/... As of 245 PM EDT Monday... Rain chances return to the forecast on Thursday, with the east coast trough rebuilding by late week. As the trough axis swings east, the lead shortwave pivots across the area. Meanwhile, low-level flow will nudge the stationary frontal boundary back northward later Thursday into Friday, further enhancing llvl moisture. CMC is a fast outlier with this system, with the vast majority of guidance later. Therefore nudged increasing PoPs a bit later into Thursday afternoon and evening over the local area. For Friday and the weekend, there will be diurnal chances for a few showers/storms. For now, keeping PoPs limited to the 15- 30% range. Highs will generally be in the upper 80s to low 90s Thurs- Sun. Lows in the upper 60s to low 70s. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... As of 825 PM EDT Monday... VFR conditions in place over area terminals to begin the TAF period. Showers and thunderstorms have split local terminals, mainly north and south of the area. Still expect SBY will be impacted by sub-VFR conditions between 01-05z (9 pm-1 am), and ECG could see brief sub-VFR conditions between 02-04z (10p-midnight). Gusty winds and IFR VIS with reduced CIGs will be possible with any storms. Storms move offshore late tonight. SSW winds turn NNW late tonight. Outlook: Predominantly VFR conditions Tues and Wed with gusty W winds 15-17 kt with gusts 20-25 kt Tuesday afternoon behind the cold front. && .MARINE... As of 400 PM EDT Monday... Late this aftn, a sfc trough was setting up over the VA Piedmont, while a cold front was pushing through ESE Ohio and ern KY. Winds were mainly SSE 10-20 kt over the waters. Waves were 1-3 ft and seas were 2-3 ft. Low pressure and the associated cold front push E this evening. A SSE wind of 10-15 kt will continue, with gusts to ~20 kt. Strong to severe tstms will develop ahead of the cold front during this evening. No flags will be issued at this time given that the wind outside of tstms should primarily be sub-SCA. However, SMWs are likely with any tstms this evening. The cold front pushes through the area later tonight into Tue morning. The wind is expected to become WSW 10-15 kt with gusts to 20 kt late tonight, and then W/WNW Tue morning. A brief period of SCA conditions are possible for the Bay late tonight/early Tue morning, as drier air arrives into the region. The wind becomes NW 5-10 kt S to 10-15 kt N by early Wed morning. Seas build to 3-4ft tonight, then 2-3 ft S to 3-4 ft N Tue, with waves in the Bay ~2 ft and occasionally up to 3 ft. Seas subside to 2-3 ft by Wed, as the wind diminishes and shifts from W to SSE. A SSW wind of 10-15 kt returns Thu, and then shifts to W and diminishes Fri behind a weak cold front. Seas potentially build to 3-4 ft later Thu/Thu night, and then subside to 2-3 ft by Fri. && .AKQ WATCHES/WARNINGS/ADVISORIES... MD...None. NC...None. VA...None. MARINE...None. && SYNOPSIS...MAM NEAR TERM...MAM SHORT TERM...AM/MAM LONG TERM...AM/MAM AVIATION...MAM MARINE...AJZ/TMG
Hazardous weather outlook, Aug 7, 8:16 PM EDT, 1 hour 42 minutes before
Hazardous Weather Outlook National Weather Service Wakefield VA 816 PM EDT Mon Aug 7 2023 NCZ012-VAZ065-066-079>084-086>090-092-093-095>100-523>525-090030- Northampton-Mecklenburg-Lunenburg-Brunswick-Dinwiddie-Prince George- Charles City-New Kent-Gloucester-Mathews-Greensville-Sussex-Surry- James City-Southampton-Isle of Wight-Norfolk/Portsmouth-Suffolk- Chesapeake-Virginia Beach-Accomack-York-Newport News- Hampton/Poquoson- 816 PM EDT Mon Aug 7 2023 This Hazardous Weather Outlook is for northeast North Carolina, east central Virginia, eastern Virginia, south central Virginia and southeast Virginia. .DAY ONE...Tonight. Isolated thunderstorms are possible this evening. Some of the storms may produce strong gusty winds...small hail...and heavy downpours. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NCZ013>017-030>032-102-090030- Hertford-Gates-Pasquotank-Camden-Western Currituck-Bertie-Chowan- Perquimans-Eastern Currituck- 816 PM EDT Mon Aug 7 2023 ...SEVERE THUNDERSTORM WATCH 611 IN EFFECT UNTIL 11 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast North Carolina. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MDZ021>025-VAZ048-060>062-064-067>069-075>078-085-509>522-090030- Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Fluvanna-Prince Edward-Cumberland-Goochland-Caroline-Nottoway-Amelia- Powhatan-Westmoreland-Richmond-Northumberland-Lancaster-Middlesex- Western Louisa-Eastern Louisa-Western Hanover-Eastern Hanover- Western Chesterfield-Eastern Chesterfield (Including Col. Heights)- Western Henrico (Including the City of Richmond)-Eastern Henrico- Western King William-Eastern King William-Western King and Queen- Eastern King and Queen-Western Essex-Eastern Essex- 816 PM EDT Mon Aug 7 2023 ...TORNADO WATCH 602 IN EFFECT UNTIL 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast Maryland, central Virginia, east central Virginia, eastern Virginia, north central Virginia and south central Virginia. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tornado Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. 05
In the hours before
Local storm report, Aug 7, 9:08 PM EDT, 50 minutes before
Preliminary Local Storm Report
National Weather Service Wakefield VA
908 PM EDT Mon Aug 7 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0505 PM Tstm Wnd Dmg 4 NNE Waldrop 38.13N 78.19W
08/07/2023 Louisa VA 911 Call Center
One tree and several large tree limbs downed
along US-15 between Waldrop and
Gordonsville.
&&
05Local storm report, Aug 7, 9:11 PM EDT, 47 minutes before
Preliminary Local Storm Report
National Weather Service Wakefield VA
911 PM EDT Mon Aug 7 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0610 PM Hail 1 NNW Fort A.p. Hill 38.12N 77.27W
08/07/2023 E1.75 inch Caroline VA Trained Spotter
Golf ball sized hail reported near Fort AP
Hill.
&&
05Local storm report, Aug 7, 9:12 PM EDT, 46 minutes before
Preliminary Local Storm Report
National Weather Service Wakefield VA
912 PM EDT Mon Aug 7 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM Hail 1 NNW Fort A.p. Hill 38.12N 77.27W
08/07/2023 E1.75 inch Caroline VA Trained Spotter
Corrects previous hail report from 1 NNW
Fort A.p. Hill. Golf ball sized hail
reported near Fort AP Hill.
&&
05Local storm report, Aug 7, 9:31 PM EDT, 27 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Aug 7, 9:35 PM EDT, 23 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Aug 7, 9:45 PM EDT, 13 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:29 PM EDT | Severe Thunderstorm Warning | AKQ | Greensville, Southampton, City of Suffolk | 61 min |
| Aug 7, 10:42 PM EDT | Special Marine Warning | AKQ | 93 min | |
| Aug 8, 12:12 AM EDT | Small Craft Advisory | AKQ | 10 hr | |
| Aug 7, 8:53 PM EDT | Flash Flood Warning | AKQ | Dorchester | 3 hr |
| Aug 7, 8:59 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 46 min |
| Aug 7, 9:21 PM EDT | Flash Flood Warning | AKQ | Dorchester | 3 hr |
| Aug 7, 9:42 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 48 min |
| Aug 7, 10:06 PM EDT | Special Weather Statement | AKQ | Wicomico | 39 min |
| Aug 7, 10:17 PM EDT | Tornado Warning | AKQ | Somerset, Wicomico, Worcester | 28 min |
| Aug 7, 10:27 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 48 min |
| Aug 7, 10:44 PM EDT | Tornado Warning | AKQ | Worcester | 31 min |
| Aug 7, 10:45 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 45 min |
| Aug 7, 11:22 PM EDT | Special Weather Statement | AKQ | Worcester | 23 min |
| Aug 7, 11:26 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 26 min |
| Aug 8, 12:12 AM EDT | Areal Flood Warning | AKQ | Dorchester | 6 hr |
Nearby
Flash Flood Warnings in Maryland, 2023Every flash flood warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.